Results 1 to 10 of about 119,492 (297)

Use of Stokes' theorem for plasma confinement. [PDF]

Philos Trans A Math Phys Eng Sci, 2020
Stokes’ theorem, in its original form and Cartan’s generalization, is crucial for designing magnetic fields to confine plasma (ionized gas). The paper illustrates its use, in particular to address the question whether quasi-symmetric fields, those for which guiding-centre motion is integrable, can be made with little or no toroidal current.This article
MacKay RS.
europepmc   +5 more sources

Electron cyclotron heating assisted start-up experiments in J-TEXT [PDF]

EPJ Web of Conferences, 2023
Electron cyclotron heating (ECH) breakdown and burn-through assist has been adopted to make the ITER start-up, which uses a low toroidal electric field of about 0.3 V/m, more robust.
Zhang Junli, de Vries Peter C, Nagasaki Kazunobu, Xia Donghui, Jiang Wei, Yang Zhoujun, Cheng Zhifeng, Xu Xin, Wang Zhijiang, Wang Nengchao, Gao Li, Ding Yonghua, Chen Zhipeng, Chen Zhongyong, Pan Yuan   +14 more
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The development of 1 MW ECRH system on J-TEXT [PDF]

EPJ Web of Conferences, 2023
A 1 MW electron cyclotron resonance heating system has been designed and developed for J-TEXT tokamak not only to enhance the total heating power but also to provide another possible way to control the plasma parameters.
Chen Xixuan, Xia Donghui, Zhang Junli, Wang Zhijiang, Pan Yuan   +4 more
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Project Design of a Pulsed D-D Fusion Neutron Source Based on Field Reversed Configuration

中国工程科学, 2022
The fusion neutron source is of great significance for conducting material testing for future fusion reactors, as it can genuinely reflect the change of material properties under fusion neutron irradiation.
Pan Yuan, Wang Zhijiang , Wu Songtao , Zhang Ming , Chen Zhipeng , Rao Bo , Zhu Ping, Yang Yong, Ding Yonghua   +8 more
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Disruption prediction for future tokamaks using parameter-based transfer learning

Communications Physics, 2023
Tokamaks are the most promising way for nuclear fusion reactors. Disruption in tokamaks is a violent event that terminates a confined plasma and causes unacceptable damage to the device.
Wei Zheng, Fengming Xue, Zhongyong Chen, Dalong Chen, Bihao Guo, Chengshuo Shen, Xinkun Ai, Nengchao Wang, Ming Zhang, Yonghua Ding, Zhipeng Chen, Zhoujun Yang, Biao Shen, Bingjia Xiao, Yuan Pan   +14 more
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Validation of the plasma-wall self-organization model for density limit in ECRH-assisted start-up of Ohmic discharges on J-TEXT

Nuclear Fusion, 2023
A recently developed plasma-wall self-organization model (Escande et al 2022 Nucl. Fusion 62 026001) predicts a significantly enhanced density limit, which may be attainable in tokamaks with ECRH-assisted Ohmic start-up and sufficiently high initial ...
Jiaxing Liu, Ping Zhu, Dominique Franck Escande, Junli Zhang, Donghui Xia, Yuhan Wang, Jiaming Wang, Qinghu Yang, Jiangang Fang, Xiaoqing Zhang, Li Gao, Zhifeng Cheng, Zhipeng Chen, Zhoujun Yang, Zhongyong Chen, Yonghua Ding, Yuan Pan, the J-TEXT Team   +17 more
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IDP-PGFE: an interpretable disruption predictor based on physics-guided feature extraction

Nuclear Fusion, 2023
Disruption prediction has made rapid progress in recent years, especially in machine learning (ML)-based methods. If a disruption prediction model can be interpreted, it can tell why certain samples are classified as disruption precursors. This allows us
C. Shen, W. Zheng, Y. Ding, X. Ai, F. Xue, Y. Zhong, N. Wang, L. Gao, Z. Chen, Z. Yang, Z. Chen, Y. Pan, J-TEXT team   +12 more
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Progress of the electron cyclotron resonance heating system and the related experiments on J-TEXT [PDF]

EPJ Web of Conferences
To augment the capabilities of the J-TEXT tokamak, efforts were undertaken in 2017 to commence the construction of an electron cyclotron resonance heating (ECRH) system.
Xia Donghui, Chen Xixuan, Li Jingtao, Wang Ruomu, Zheng Wei   +4 more
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Experimental study of electron cyclotron heating assisted start-up on J-TEXT

Nuclear Fusion, 2023
Second harmonic X-mode (X2 mode) electron cyclotron heating (ECH) assisted start-up has been studied experimentally on the J-TEXT device to determine the minimum ECH power requirements to assist breakdown and develop a better physical description of the ...
Junli Zhang, Peter C de Vries, Kazunobu Nagasaki, Donghui Xia, Wei Jiang, Zhoujun Yang, Zhifeng Cheng, Li Gao, Xin Xu, Zhijiang Wang, Nengchao Wang, Yonghua Ding, Zhipeng Chen, Zhongyong Chen, Yuan Pan, J-TEXT Team   +15 more
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Spectra of magnetic perturbations triggered by pellets in JET plasmas [PDF]

, 2010
Aiming at investigating edge localised mode (ELM) pacing for future application on ITER, experiments have been conducted on JET injecting pellets in different plasma configurations, including high confinement regimes with type-I and type-III ELMs, low ...
B. Alper, Connor J.W., F.M. Poli, Geraud A., H.R. Koslowski, Lang P.T., Lang P.T., P.T. Lang, Perez C.P., Poli F.M., Poli F.M., S.E. Sharapov, Sartori R., Smeulders P., Zohm H.   +14 more
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